A bionic eye has helped people who are legally blind to see and read letters again.
The device consists of glasses with an embedded camera, and a microchip implanted behind the retina. Images beamed through the pupil from the camera are converted by the chip into electrical signals that are then sent to the brain.
Biotech firm Pixium Vision, which created the device, has trialled the bionic eye in five people in France who have age-related macular degeneration.
All those in …